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A company is considering offering child care for their employees. They wish to estimate the mean weekly child-care cost of their employees. A sample of 10 employees reveals the following amounts spent last week in dollars.
101 97 93 103 100 93 99 90 102 96
Develop a 95% confidence interval for the population mean. Interpret the result.
Find the marginal densities of X and Y. Are they independent, and why?
question two different methods were used to determine the yield of a chemical. the experiment was run using eight
The Gray Stone Rock Band will give 10 performances this season.Four of these will be only songs from the 70s. If Tony gets to pick two tickets at random, what is the probability that he will get both 70s tickets?
A random sample of students is selected, and each one is asked to try first brand A and then brand B, or vice versa with the order determined at random.
a cracker bakery wants to test microwaving crackers after breaking to reduce the risk of broken crackers at the time
(a) Determine the critical value(s) for a right-tailed test of a population mean at the α=0.10 level of significance with 15 degrees of freedom. (b) Determine the critical value(s) for a left-tailed test of a population mean at the α=0.01 level o..
The problem now is to decide which contractor to choose. B has indicated that for an- other $20 million he could do the job in 18 months, and you have said that you would be indifferent between that and the original proposal.
john sullivan bought a new brunswick boat for 17000. he put a 2500 down payment on it. the banks loan was for 60
What was the purpose of calculating a Cohen's d? When is a Cohen's d calculated? Interpret d=.90. What does it mean in this example?
in horse racing a trifecta bet is one where you need to pick the first three finishers of the race in the exact order
scores derived from a patient satisfaction survey are normally distributed with u 50 and sigma7.5 with high score
one measure of the risk or volatility of an individual stock is the standard deviation of the total return capital
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